Changes to POST /v2/create-phone-call

added the optional property allOf[#/components/schemas/V2CallBase]/unbilled_response_periods to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/unbilled_response_seconds to the response with the 201 status

the allOf[#/components/schemas/V2CallBase]/post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response's property type changed from object to no type for status 201

the allOf[#/components/schemas/V2CallBase]/pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response's property type changed from object to no type for status 201

the allOf[#/components/schemas/V2CallBase]/scrubbed_post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response's property type changed from object to no type for status 201

the allOf[#/components/schemas/V2CallBase]/scrubbed_pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response's property type changed from object to no type for status 201

the allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response's property type changed from object to no type for status 201

the allOf[#/components/schemas/V2CallBase]/transcript_object/items response's property type changed from object to no type for status 201

the allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response's property type changed from object to no type for status 201

removed the required property allOf[#/components/schemas/V2CallBase]/post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/content from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/role from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/words from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/content from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/role from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/words from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/scrubbed_post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/content from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/scrubbed_post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/role from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/scrubbed_post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/words from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/scrubbed_pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/content from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/scrubbed_pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/role from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/scrubbed_pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/words from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/content from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/role from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/words from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/transcript_object/items/content from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/transcript_object/items/role from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/transcript_object/items/words from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/content from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/role from the response with the 201 status

removed the required property allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/words from the response with the 201 status

removed the optional property allOf[#/components/schemas/V2CallBase]/post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata from the response with the 201 status

removed the optional property allOf[#/components/schemas/V2CallBase]/pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata from the response with the 201 status

removed the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata from the response with the 201 status

removed the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata from the response with the 201 status

removed the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata from the response with the 201 status

removed the optional property allOf[#/components/schemas/V2CallBase]/transcript_object/items/metadata from the response with the 201 status

removed the optional property allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata from the response with the 201 status

added TextUtterance subschema #2 to the allOf[#/components/schemas/V2CallBase]/post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response property allOf list for the response status 201

added TextUtterance subschema #2 to the allOf[#/components/schemas/V2CallBase]/pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response property allOf list for the response status 201

added TextUtterance subschema #2 to the allOf[#/components/schemas/V2CallBase]/scrubbed_post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response property allOf list for the response status 201

added TextUtterance subschema #2 to the allOf[#/components/schemas/V2CallBase]/scrubbed_pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response property allOf list for the response status 201

added TextUtterance subschema #2 to the allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response property allOf list for the response status 201

added TextUtterance subschema #2 to the allOf[#/components/schemas/V2CallBase]/transcript_object/items response property allOf list for the response status 201

added TextUtterance subschema #2 to the allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance] response property allOf list for the response status 201

removed the request property agent_override/conversation_flow/model_config/anyOf[#/components/schemas/DuplexModelConfig]/voice_prompt

removed the request property agent_override/retell_llm/model_config/anyOf[#/components/schemas/DuplexModelConfig]/voice_prompt

added DuplexModelConfig to the agent_override/conversation_flow/model_config request property anyOf list

added DuplexModelConfig to the agent_override/retell_llm/model_config request property anyOf list

removed the request property agent_override/conversation_flow/tool_call_strict_mode

removed the request property agent_override/retell_llm/tool_call_strict_mode

added the new drama-3 enum value to the request property agent_override/agent/voice_model

added the new gpt-6.1-terra enum value to the request property agent_override/agent/post_call_analysis_model

added the new gpt-6.1-terra enum value to the request property agent_override/conversation_flow/backup_model/oneOf[#/components/schemas/BackupModelChoice]/allOf[#/components/schemas/ModelChoiceCascading]/model

added the new gpt-6.1-terra enum value to the request property agent_override/conversation_flow/model_choice/allOf[#/components/schemas/ModelChoice]/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gpt-6.1-terra enum value to the request property agent_override/conversation_flow/model_config/anyOf[#/components/schemas/CascadingModelConfig]/backup/oneOf[#/components/schemas/BackupModelRef]/model

added the new gpt-6.1-terra enum value to the request property agent_override/conversation_flow/model_config/anyOf[#/components/schemas/CascadingModelConfig]/primary/model

added the new gpt-6.1-terra enum value to the request property agent_override/retell_llm/backup_model/oneOf[#/components/schemas/BackupModelChoice]/allOf[#/components/schemas/ModelChoiceCascading]/model

added the new gpt-6.1-terra enum value to the request property agent_override/retell_llm/model/allOf[#/components/schemas/NullableLLMModel]

added the new gpt-6.1-terra enum value to the request property agent_override/retell_llm/model_config/anyOf[#/components/schemas/CascadingModelConfig]/backup/oneOf[#/components/schemas/BackupModelRef]/model

added the new gpt-6.1-terra enum value to the request property agent_override/retell_llm/model_config/anyOf[#/components/schemas/CascadingModelConfig]/primary/model

added the new optional request property agent_override/agent/post_session_tools/items/allOf[subschema #1]/oneOf[#/components/schemas/AppTool]/execution_status_variable

added the new optional request property agent_override/agent/post_session_tools/items/allOf[subschema #1]/oneOf[#/components/schemas/CodeTool]/execution_status_variable

added the new optional request property agent_override/agent/post_session_tools/items/allOf[subschema #1]/oneOf[#/components/schemas/CustomTool]/execution_status_variable

added the new optional request property agent_override/agent/pre_session_tools/items/allOf[subschema #1]/oneOf[#/components/schemas/AppTool]/execution_status_variable

added the new optional request property agent_override/agent/pre_session_tools/items/allOf[subschema #1]/oneOf[#/components/schemas/CodeTool]/execution_status_variable

added the new optional request property agent_override/agent/pre_session_tools/items/allOf[subschema #1]/oneOf[#/components/schemas/CustomTool]/execution_status_variable

added the new optional request property agent_override/conversation_flow/backup_model

added the new optional request property agent_override/retell_llm/backup_model

added the optional property allOf[#/components/schemas/V2CallBase]/post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/ToolCallInvocationUtterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/ToolCallInvocationUtterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/ToolCallInvocationUtterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_post_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/ToolCallInvocationUtterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_pre_session_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[#/components/schemas/ToolCallInvocationUtterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/transcript_object/items/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items/oneOf[#/components/schemas/ToolCallInvocationUtterance]/metadata to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items/oneOf[#/components/schemas/Utterance]/metadata to the response with the 201 status

added the new grok-voice-3.0 enum value to the request property agent_override/conversation_flow/model_choice/allOf[#/components/schemas/ModelChoice]/oneOf[#/components/schemas/ModelChoiceS2S]/model

added the new grok-voice-3.0 enum value to the request property agent_override/conversation_flow/model_config/anyOf[#/components/schemas/S2SModelConfig]/primary/model

added the new grok-voice-3.0 enum value to the request property agent_override/retell_llm/model_config/anyOf[#/components/schemas/S2SModelConfig]/primary/model

added the new grok-voice-3.0 enum value to the request property agent_override/retell_llm/s2s_model/allOf[#/components/schemas/NullableS2SModel]

added the new optional request property agent_override/agent/post_session_tools/items/allOf[subschema #1]/oneOf[#/components/schemas/AppTool]/parameters/items/additionalProperties

added the new optional request property agent_override/agent/post_session_tools/items/allOf[subschema #1]/oneOf[#/components/schemas/CustomTool]/parameters/additionalProperties

added the new optional request property agent_override/agent/pre_session_tools/items/allOf[subschema #1]/oneOf[#/components/schemas/AppTool]/parameters/items/additionalProperties

added the new optional request property agent_override/agent/pre_session_tools/items/allOf[subschema #1]/oneOf[#/components/schemas/CustomTool]/parameters/additionalProperties

added ModelChoice to the agent_override/conversation_flow/model_choice request property allOf list

added NullableLLMModel to the agent_override/retell_llm/model request property allOf list

added NullableS2SModel to the agent_override/retell_llm/s2s_model request property allOf list

the request property agent_override/retell_llm/model became not nullable

the request property agent_override/retell_llm/s2s_model became not nullable

removed the enum value claude-4.5-haiku of the request property agent_override/retell_llm/model

removed the enum value claude-4.6-sonnet of the request property agent_override/retell_llm/model

removed the enum value claude-5-opus of the request property agent_override/retell_llm/model

removed the enum value claude-5-sonnet of the request property agent_override/retell_llm/model

removed the enum value claude-5.5-haiku of the request property agent_override/retell_llm/model

removed the enum value claude-5.5-opus of the request property agent_override/retell_llm/model

removed the enum value claude-5.5-sonnet of the request property agent_override/retell_llm/model

removed the enum value gemini-3.0-flash of the request property agent_override/retell_llm/model

removed the enum value gemini-3.1-flash-lite of the request property agent_override/retell_llm/model

removed the enum value gemini-3.5-flash of the request property agent_override/retell_llm/model

removed the enum value gemini-3.5-flash-lite of the request property agent_override/retell_llm/model

removed the enum value gemini-3.6-flash of the request property agent_override/retell_llm/model

removed the enum value gemini-3.7-flash of the request property agent_override/retell_llm/model

removed the enum value gemini-3.8-flash of the request property agent_override/retell_llm/model

removed the enum value gemini-4-argon of the request property agent_override/retell_llm/model

removed the enum value gpt-4.1 of the request property agent_override/retell_llm/model

removed the enum value gpt-4.1-mini of the request property agent_override/retell_llm/model

removed the enum value gpt-5 of the request property agent_override/retell_llm/model

removed the enum value gpt-5-mini of the request property agent_override/retell_llm/model

removed the enum value gpt-5-nano of the request property agent_override/retell_llm/model

removed the enum value gpt-5.1 of the request property agent_override/retell_llm/model

removed the enum value gpt-5.2 of the request property agent_override/retell_llm/model

removed the enum value gpt-5.4 of the request property agent_override/retell_llm/model

removed the enum value gpt-5.4-mini of the request property agent_override/retell_llm/model

removed the enum value gpt-5.4-nano of the request property agent_override/retell_llm/model

removed the enum value gpt-5.5 of the request property agent_override/retell_llm/model

removed the enum value gpt-5.6-luna of the request property agent_override/retell_llm/model

removed the enum value gpt-5.6-terra of the request property agent_override/retell_llm/model

removed the enum value gpt-6-astra of the request property agent_override/retell_llm/model

removed the enum value gpt-6-luna of the request property agent_override/retell_llm/model

removed the enum value gpt-6-sol of the request property agent_override/retell_llm/model

removed the enum value gpt-6.1-sol of the request property agent_override/retell_llm/model

removed the enum value gpt-realtime of the request property agent_override/retell_llm/s2s_model

removed the enum value gpt-realtime-1.5 of the request property agent_override/retell_llm/s2s_model

removed the enum value gpt-realtime-2 of the request property agent_override/retell_llm/s2s_model

removed the enum value gpt-realtime-2.1 of the request property agent_override/retell_llm/s2s_model

removed the enum value gpt-realtime-2.1-mini of the request property agent_override/retell_llm/s2s_model

removed the enum value gpt-realtime-mini of the request property agent_override/retell_llm/s2s_model

removed the enum value undefined of the request property agent_override/retell_llm/model

removed the enum value undefined of the request property agent_override/retell_llm/s2s_model

removed ModelChoiceCascading ModelChoiceS2S from the agent_override/conversation_flow/model_choice request property oneOf list

the agent_override/retell_llm/model request property type changed from string to no type

the agent_override/retell_llm/s2s_model request property type changed from string to no type

added the new optional request property agent_override/conversation_flow/model_config

added the new optional request property agent_override/retell_llm/model_config

request property agent_override/conversation_flow/model_choice deprecated

request property agent_override/conversation_flow/model_temperature deprecated

request property agent_override/retell_llm/model deprecated

request property agent_override/retell_llm/model_high_priority deprecated

request property agent_override/retell_llm/model_temperature deprecated

request property agent_override/retell_llm/model_ultrafast deprecated

request property agent_override/retell_llm/s2s_model deprecated

removed the enum value claude-4.5-sonnet of the request property agent_override/agent/post_call_analysis_model

removed the enum value claude-4.5-sonnet of the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

removed the enum value claude-4.5-sonnet of the request property agent_override/retell_llm/model

removed the enum value eleven_turbo_v2 of the request property agent_override/agent/voice_model

removed the enum value eleven_turbo_v2_5 of the request property agent_override/agent/voice_model

removed the enum value gemini-2.5-flash-lite of the request property agent_override/agent/post_call_analysis_model

removed the enum value gemini-2.5-flash-lite of the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

removed the enum value gemini-2.5-flash-lite of the request property agent_override/retell_llm/model

removed the enum value gpt-4.1-nano of the request property agent_override/agent/post_call_analysis_model

removed the enum value gpt-4.1-nano of the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

removed the enum value gpt-4.1-nano of the request property agent_override/retell_llm/model

removed LanguageLegacy from the agent_override/agent/language request property oneOf list

removed the request property agent_override/agent/analysis_successful_prompt

removed the request property agent_override/agent/analysis_summary_prompt

removed the request property agent_override/agent/analysis_user_sentiment_prompt

removed the request property agent_override/agent/voice_emotion

removed the request property agent_override/agent/voicemail_detection_timeout_ms

removed the request property agent_override/agent/voicemail_message

added the new budget_reached enum value to the allOf[#/components/schemas/V2CallBase]/disconnection_reason response property for the response status 201

added the new call_take_over enum value to the allOf[#/components/schemas/V2CallBase]/disconnection_reason response property for the response status 201

added the new credit_exhausted enum value to the allOf[#/components/schemas/V2CallBase]/disconnection_reason response property for the response status 201

added the new network_blocked enum value to the allOf[#/components/schemas/V2CallBase]/disconnection_reason response property for the response status 201

added the new user_requested_callback enum value to the allOf[#/components/schemas/V2CallBase]/disconnection_reason response property for the response status 201

added the new user_requested_dnc enum value to the allOf[#/components/schemas/V2CallBase]/disconnection_reason response property for the response status 201

added the new optional request property agent_override/agent/contact_memory_config

added the new optional request property agent_override/agent/denoising_enhancement_level

added the new optional request property agent_override/agent/enable_dnc_detection

added the new optional request property agent_override/agent/enable_expressive_mode

added the new optional request property agent_override/agent/expressive_emotion_tags

added the new optional request property agent_override/agent/expressive_mode_prompt

added the new optional request property agent_override/agent/handbook_config/conversational_personality

added the new optional request property agent_override/agent/post_session_tools

added the new optional request property agent_override/agent/pre_session_tools

added the new optional request property agent_override/agent/version_title

added the new optional request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/ultrafast

added the new optional request property agent_override/retell_llm/model_ultrafast

added the new optional request property honor_internal_dnc

added the new optional request property idempotency_key

added the new assemblyai enum value to the request property agent_override/agent/custom_stt_config/provider/allOf[#/components/schemas/AsrProvider]

added the new claude-5-opus enum value to the request property agent_override/agent/post_call_analysis_model

added the new claude-5-opus enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new claude-5-opus enum value to the request property agent_override/retell_llm/model

added the new claude-5-sonnet enum value to the request property agent_override/agent/post_call_analysis_model

added the new claude-5-sonnet enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new claude-5-sonnet enum value to the request property agent_override/retell_llm/model

added the new claude-5.5-haiku enum value to the request property agent_override/agent/post_call_analysis_model

added the new claude-5.5-haiku enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new claude-5.5-haiku enum value to the request property agent_override/retell_llm/model

added the new claude-5.5-opus enum value to the request property agent_override/agent/post_call_analysis_model

added the new claude-5.5-opus enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new claude-5.5-opus enum value to the request property agent_override/retell_llm/model

added the new claude-5.5-sonnet enum value to the request property agent_override/agent/post_call_analysis_model

added the new claude-5.5-sonnet enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new claude-5.5-sonnet enum value to the request property agent_override/retell_llm/model

added the new eleven_v3_conversational enum value to the request property agent_override/agent/voice_model

added the new eleven_v4 enum value to the request property agent_override/agent/voice_model

added the new eleven_v4_turbo enum value to the request property agent_override/agent/voice_model

added the new gemini-3.5-flash enum value to the request property agent_override/agent/post_call_analysis_model

added the new gemini-3.5-flash enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gemini-3.5-flash enum value to the request property agent_override/retell_llm/model

added the new gemini-3.5-flash-lite enum value to the request property agent_override/agent/post_call_analysis_model

added the new gemini-3.5-flash-lite enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gemini-3.5-flash-lite enum value to the request property agent_override/retell_llm/model

added the new gemini-3.6-flash enum value to the request property agent_override/agent/post_call_analysis_model

added the new gemini-3.6-flash enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gemini-3.6-flash enum value to the request property agent_override/retell_llm/model

added the new gemini-3.7-flash enum value to the request property agent_override/agent/post_call_analysis_model

added the new gemini-3.7-flash enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gemini-3.7-flash enum value to the request property agent_override/retell_llm/model

added the new gemini-3.8-flash enum value to the request property agent_override/agent/post_call_analysis_model

added the new gemini-3.8-flash enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gemini-3.8-flash enum value to the request property agent_override/retell_llm/model

added the new gemini-4-argon enum value to the request property agent_override/agent/post_call_analysis_model

added the new gemini-4-argon enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gemini-4-argon enum value to the request property agent_override/retell_llm/model

added the new gpt-5.6-luna enum value to the request property agent_override/agent/post_call_analysis_model

added the new gpt-5.6-luna enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gpt-5.6-luna enum value to the request property agent_override/retell_llm/model

added the new gpt-5.6-terra enum value to the request property agent_override/agent/post_call_analysis_model

added the new gpt-5.6-terra enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gpt-5.6-terra enum value to the request property agent_override/retell_llm/model

added the new gpt-6-astra enum value to the request property agent_override/agent/post_call_analysis_model

added the new gpt-6-astra enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gpt-6-astra enum value to the request property agent_override/retell_llm/model

added the new gpt-6-luna enum value to the request property agent_override/agent/post_call_analysis_model

added the new gpt-6-luna enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gpt-6-luna enum value to the request property agent_override/retell_llm/model

added the new gpt-6-sol enum value to the request property agent_override/agent/post_call_analysis_model

added the new gpt-6-sol enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gpt-6-sol enum value to the request property agent_override/retell_llm/model

added the new gpt-6.1-sol enum value to the request property agent_override/agent/post_call_analysis_model

added the new gpt-6.1-sol enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gpt-6.1-sol enum value to the request property agent_override/retell_llm/model

added the new gpt-realtime-2.1 enum value to the request property agent_override/retell_llm/s2s_model

added the new gpt-realtime-2.1-mini enum value to the request property agent_override/retell_llm/s2s_model

added the new inworld-tts-2 enum value to the request property agent_override/agent/voice_model

added the new inworld-tts-2-flash enum value to the request property agent_override/agent/voice_model

added the new jyutping enum value to the request property agent_override/agent/pronunciation_dictionary/items/alphabet

added the new muse enum value to the request property agent_override/agent/custom_stt_config/provider/allOf[#/components/schemas/AsrProvider]

added the new pinyin enum value to the request property agent_override/agent/pronunciation_dictionary/items/alphabet

added the new sonic-3.6 enum value to the request property agent_override/agent/voice_model

added Language to the agent_override/agent/language request property oneOf list

added ModelChoiceS2S to the agent_override/conversation_flow/model_choice request property oneOf list

added the optional property allOf[#/components/schemas/V2CallBase]/agent_tag to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/post_session_transcript_with_tool_calls to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/pre_session_transcript_with_tool_calls to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_post_session_transcript_with_tool_calls to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_pre_session_transcript_with_tool_calls to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items/oneOf[#/components/schemas/ToolCallInvocationUtterance]/type to the response with the 201 status

added the optional property allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items/oneOf[#/components/schemas/ToolCallInvocationUtterance]/type to the response with the 201 status

added InjectedUtterance to the allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items response property oneOf list for the response status 201

added InjectedUtterance to the allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items response property oneOf list for the response status 201

changed the pattern of the request property override_agent_version/oneOf[subschema #2] from ^(latest|(?!(?:v\d+)$)[a-z][a-z0-9_-]{0,19})$ to ^(latest|latest_published|(?!(?:latest|latest_published|v\d+)$)[a-z][a-z0-9_-]{0,19})$

added the new no_concurrency_fallback enum value to the allOf[#/components/schemas/V2CallBase]/disconnection_reason response property for the response status 201

added SmsUtterance to the allOf[#/components/schemas/V2CallBase]/scrubbed_transcript_with_tool_calls/items response property oneOf list for the response status 201

added SmsUtterance to the allOf[#/components/schemas/V2CallBase]/transcript_with_tool_calls/items response property oneOf list for the response status 201

removed the request property agent_override/agent/is_public

the retell_llm_dynamic_variables/additionalProperties request property type changed from no type to string

the allOf[#/components/schemas/V2CallBase]/collected_dynamic_variables/additionalProperties response's property type changed from no type to string for status 201

the allOf[#/components/schemas/V2CallBase]/retell_llm_dynamic_variables/additionalProperties response's property type changed from no type to string for status 201

added the new gpt-realtime-2 enum value to the request property agent_override/retell_llm/s2s_model

added the new s2.1-pro enum value to the request property agent_override/agent/voice_model

added the new sonic-3.5 enum value to the request property agent_override/agent/voice_model

changed the pattern of the request property override_agent_version/oneOf[subschema #2] from ^[a-z0-9_-]+$ to ^(latest|(?!(?:v\d+)$)[a-z][a-z0-9_-]{0,19})$

removed the enum value gemini-2.5-flash of the request property agent_override/agent/post_call_analysis_model

removed the enum value gemini-2.5-flash of the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

removed the enum value gemini-2.5-flash of the request property agent_override/retell_llm/model

added the new optional request property agent_override/agent/allow_dtmf_interruption

added the new optional request property agent_override/agent/call_screening_option

added the new optional request property agent_override/agent/ivr_option/detection_prompt

added the new optional request property agent_override/agent/voicemail_option/detection_prompt

request property override_agent_version list-of-types was widened by adding types string to media type application/json

added AsrProvider to the agent_override/agent/custom_stt_config/provider request property allOf list

removed the enum value azure of the request property agent_override/agent/custom_stt_config/provider

removed the enum value deepgram of the request property agent_override/agent/custom_stt_config/provider

removed the enum value soniox of the request property agent_override/agent/custom_stt_config/provider

the agent_override/agent/custom_stt_config/provider request property type changed from string to no type

added the new gpt-5.5 enum value to the request property agent_override/agent/post_call_analysis_model

added the new gpt-5.5 enum value to the request property agent_override/conversation_flow/model_choice/oneOf[#/components/schemas/ModelChoiceCascading]/model

added the new gpt-5.5 enum value to the request property agent_override/retell_llm/model

removed the enum value af-ZA of the request property agent_override/agent/language

removed the enum value ar-SA of the request property agent_override/agent/language

removed the enum value az-AZ of the request property agent_override/agent/language